A tire has a radius of 7.5 inches.
How many inches will the tire travel after one rotation?
Answer:
80
[tex]80\pi \frac{rad.}{sec.} [/tex]
Step-by-step explanation:
You need to calculate the circumference of this wheel to determine how far it travels with each revolution.
First, you need to know the diameter of a circle, which is the length of a straight line drawn through the circle.
You need to calculate the circumference of this wheel to determine how far it travels with each revolution.
First, you need to know the diameter of a circle, which is the length of a straight line drawn through the circle.
The magic number here is pi, which is roughly 3.14159265. The digits to the right of the decimal point continue infinitely.
Dividing a circle’s circumference by pi will give you a circle’s diameter.
Multiplying a circle’s diameter by pi will give you a circle’s circumference.
Lilly bought 4 pairs of blue jeans for $40. How much money did she pay the clerk for each pair of jeans?
$ -10
$ 10
$ -160
$ 160
Answer:
$10
Step-by-step explanation:
Answer:
10 in the answer
Step-by-step explanation:
10 is the answer
if you buy three stickers you get a 75% discount on third sticker if one sticker cost $.40 how much will three stickers cost you
Answer:
$1.10
Step-by-step explanation:
The first two stickers cost $0.8. The thrird one will cost 75% of the cost of one sticker. To find the answer, you multiply 0.75 (0.75 is 75% as a decimal) by 0.4 to get 0.3. $0.3 plus $0.8 equals $1.10.
A sweater was discounted by 36%. The amount if the discount was $27. What was the cost of the sweater?
Answer:
The cost of the sweater would be $17.28
the perimeter of the floor of a room is 18 metre and its height is 3 cm what is the area of 4 walls of the room
Note: The height of the room must be 3 m instead of 3 cm because 3 cm is too small and it cannot be the height of a room.
Given:
Perimeter of the floor of a room = 18 metre
Height of the room = 3 metre
To find:
The area of 4 walls of the room.
Solution:
We know that, the area of 4 walls of the room is the curved surface area of the cuboid room.
The curved surface area of the cuboid is
[tex]C.S.A.=2h(l+b)[/tex]
Where, h is height, l is length and b is breadth.
Perimeter of the rectangular base is 2(l+b). So,
[tex]C.S.A.=\text{Perimeter of the base} \times h[/tex]
Putting the given values, we get
[tex]C.S.A.=18\times 3[/tex]
[tex]C.S.A.=54[/tex]
Therefore, the area of 4 walls of the room is 54 sq. metres.
PROBLEM SOLVING When a plant or animal dies, it stops acquiring carbon-14 from the atmosphere. The amount y in grams) of carbon-14 in the body of an organism after t years is y= a(0.5)^t/5730, where a is the initial amount (in grams). What percent of the carbon-14 is released each year? Round your answer to the nearest hundredth.
Answer:
0.01%
Step-by-step explanation:
y=a (0.5)^t/5730
y=a [(0.5)^t/5730]
when you put 0.5^1/5730
it'll give you 0.99
The "equation" is y=a(1-r)^t
so 1-0.99 is 0.01
The percent of carbon-14 released each year will be 50.
What is an exponent?Consider the function:
y = a (1 ± r) ˣ
Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.
If there is a plus sign, then there is exponential growth happening by r fraction or 100r %.
If there is a minus sign, then there is exponential decay happening by r fraction or 100r %.
The equation is given below.
[tex]\rm y= a \left ( 0.5 \right )^{t/5730}[/tex]
Where 'a' is the initial amount (in grams) and 't' represents the number of years.
The equation is also written as,
[tex]\rm y= a \left ( 0.5 \right )^{t/5730}\\\\\rm y= a \left ( 1 - 0.5 \right )^{t/5730}[/tex]
The percent of carbon-14 released each year will be 50.
More about the exponent link is given below.
https://brainly.com/question/5497425
#SPJ2
If B = 49° 13' and b = 10, find a.
a. 4.6
b. 8.6
c. 5.4
d. 6.5
The answer is B.
Couldn’t find the answer when I was looking so I thought I’d post it.
Answer:
A. is 8.6
B= 49°13' b=10 A=?
so my answer for A=8.6
how do you know 3001x25 is (whatever the answer you get) without using a calculator
explain
Answer:
75,025
Step-by-step explanation:
There are many ways to solve this equation, you can divide 3001 by 4, this way you will know how many hundereds will be in your answer. 4*25=100, so in this case, 3001/4 is 750.25. Then you multiply 750.25 by 100. 750.25*100=75,025.
pls help i well give u points
Answer: 4(-1)^3 (2)^2=4
So you would first substitute the x for -1
Then you would substitute the y for 2
Giving you- 4 (-1)^3 Times (2)^2 which would equal 4
Hope this helps :) Im learning this too in math lol
Which best describes the association shown in the scatter plot?
A. no association
B. strong positive
C. moderate positive
D. strong negative
Answer:
strong negative
Step-by-step explanation:
In the Seventh grade Rachel read 15 books in the 8th grade she read 19 books what is the percent of change of books read
Answer:
26.67%
Step-by-step explanation:
In the Seventh grade Rachel read 15 books in the 8th grade she read 19 books what is the percent of change of books read
The formula for Percent change =
New value - Original value/Original value × 100
New value = 19 books
Original value = 15 books
= 19 - 15/15 × 100
= 4/15 × 100
= 26.67%
The percent change of book read= 26.67%
i need help baddddddddddddddd plzz
Answer:
A
Step-by-step explanation:
it's A because it is the only option with an inequality symbol
the inequality symbols are: < > ≤ ≥
Suppose 15 Argus student ride the city bus to school. Out of a total of 220 students, what percent ride the city bus (round to nearest whole %)
Answer:
7%
Step-by-step explanation:
(15/220) x 100 = 6. 8182 = 7%
to convert to percentage multiply by 100
To convert to the nearest whole number, look at the first number after the decimal. If it is greater or equal to 5, add 1 to the number after the decimal. 8 is greater than 5, so add one to 6
A factory increased its production by 22%and produced 4900tonnes. How many tonnes was it producing before
Answer:
whfjajfigiiwitohoeirtiririri neji
The sum of a number and five is
thirteen.
(write the equation )
Answer:
8+5 = 13
Step-by-step explanation:
mark brainliest please
Answer:
n+5=13
Step-by-step explanation:
if you want the answer, its 8
$750 was earned in interest over 3 years. Find the interest rate if $5,000 was originally invested
Answer:
5% intrest yearly
Step-by-step explanation:
What value is closest to the length of major arc Xyz?
Answer:
44.0
Step-by-step explanation:
cause i did it :)
Two identical number cubes are shown in the picture. The edge length of these number cubes is 3 centimeters. What is the combined volume of the two number cubes in cubic centimeters? 27 cm3 9 cm3 18 cm3 54 cm3
Answer:
They are both identical cubes which makes it much easier.
Work out the volume for just one first.
The formula for volume is:
l x w x h
However, since it is a cube, all lengths are the same.
3 x 3 x 3 = 27
Now multiply it by 2 to get the volume of both combined:
27 x 2 = 54.
In short, your answer is 54cm 3
Hope This Helps You!
Good Luck :)
Step-by-step explanation:
Find the area of this figure.
A = in^2
Answer:
34
Step-by-step explanation:
Answer:
[tex]34in^2[/tex]
Step-by-step explanation:
First, you should find the area of the trapezoid which the formula for that is:
[tex](b1 + b2)h/2[/tex]
So, you will ad up 7in and 3in, and you should get 10in.
Now multiply 10 in by the height which is 5in, so it will be 50in^2. Then you have to divide that by 2 turning it into 25in^2.
For the top part, it is basically a triangle so you just multiply 3 by 6, giving you 18/2 = 9in^2
Add the two together and you should get 34in^2
please help me lol it’s due today
Answer:
0091880102993201019200299219191
[tex]1 \times 666 = 1000[/tex]
Step-by-step explanation:
1+1
27=15+n I can not get this one ether
Answer:
n= 12
Step-by-step explanation:
27=15+n
step 1. simplify
27=n+15
step 2. flip the equation n+15=27
step 3. subtract 15 from both sides
n+ 15 - 15 = 27 - 15 =
n=12
Answer:
12.
Step-by-step explanation:
We don't have the other number, so we must do the reverse operation, which is subtraction. So we have to subtract 27 from 15. 7-5 is 2, and 20-10 is 10. Add those together and you get 12.
What is the variables in the expression
x2 + y - 2 - 16
Answer:
The variables in your equation are x and y;
the numbers in your equation are 2, -2, and -16
1.
This function represents the value, in dollars, of a particular model of car, whero z represents the number of miles driven,
f(x)= -50x + 25,000
a. What does f(x) represent?
b. What does x represent?
c. What does the number 25,000 represent?
d. What does the number -50 represent?
e. What is the value of the car after it's been driven 100 miles?
f. What is the value of the car after it's been driven 200 miles?
Answer:
The number of dollars it costs to drive the car 30 miles
Step-by-step explanation:
A retangle has an area of 30 square meters and a perimeter of 34 meters what are the dimensions of the retangle
Answer: Length = 15 meters
Width = 2 meters
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
Area of a rectangle = l × w
where l = length
w = width
Therefore,
2l + 2w = 34 ...... i
l × w = 30 ........ ii
From equation i
2l + 2w = 34
Divide through by 2.
l + w = 17 ...... iii
Then, l = 17 - w ........ iv
Put equation iv into ii
l × w = 30
(17 - w) × w = 30
17w - w² = 30
w² - 17w + 30 = 0
w² - 15w - 2w + 30 = 0
w(w - 15) - 2(w - 15) = 0
(w - 2) = 0
w = 0 + 2 = 2
w - 15 = 0
w = 0 + 15 = 15
Length = 15 meters
Width = 2 meters
Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain your thinking.
1) Suppose that you have a new candy jar with the same ratio of Jolly Ranchers to jawbreakers that Mrs. Pascal had but it contains 100 Jolly Ranchers. How many jawbreakers would you have?
Answer:
260 jawbreakers
Step-by-step explanation:
The ratio is 5:13 so if the value of Jolly ranchers increased 20x then the number of jawbreakers would also increase by 20x. There are 260 jawbreakers.
8b-What is the Unit Price for the better deal? Round to the nearest hundredth) Put your answer in the form 0.00 or .00, so if answer is 43 cents, its 0.43 or.43, if there is a dollar amount like 1.50, do not add zeros in front) Your answer 9- Which sour cream is the better deal? * O Daisy Sour Cream $1.49 for 8 oz O Kraft Sour Cream $2.55 for 16 oz
14 i think is the answer
5 divided by 7 as a decimal
Answer: 0.714
Step-by-step explanation:
solve : 3x - 3 = 2x
if you can show workings that would be great thank you !
Answer:
3
Step-by-step explanation:
3x-3=2x
3x-2x=3
x=3
Answer:
x=3
Step-by-step explanation:
3x - 3 = 2x
-3x -3x
-3 = -x
The x cannot be a negative so you divide both sides by -1 and then the answer becomes x=3
A photo is 15 centimeters high and 9 centimeters wide. Mikael wants to proportionately shrink it so its height is 6 centimeters high. How wide would it then be? Find the missing measurement using a proportion
Answer:
6:3.6
Step-by-step explanation:
The hight of the photo=15
so,15=6
15 :- 2.5=6
9 divided by 2.6= 3.6
therefour, the answer will be 6:3.6
The triangles below are similar. Which similarity statement expresses the relationship between the two triangles?
Answer:
C. ΔFGH~ΔJKL
Step-by-step explanation: